p¯−pElastic Scattering at 6.9 GeV/c

Abstract

The $\overline{p}-p$ elastic scattering at 6.9 GeV/c was studied by the analysis of antiproton film taken by the Brookhaven National Laboratory 80-in. hydrogen bubble chamber. The cross section of the elastic scattering was 14.7 ± 1.5 mb. The angular distribution showed a dip in the region of $-t\approx 0.6$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$ and a secondary maximum at $-t\approx 0.8$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$.